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        <h1><a href="../../../index.html">All files</a> / <a href="index.html">src/components/TreeFilter</a> index.vue</h1>
        <div class='clearfix'>
            
            <div class='fl pad1y space-right2'>
                <span class="strong">0% </span>
                <span class="quiet">Statements</span>
                <span class='fraction'>0/162</span>
            </div>
        
            
            <div class='fl pad1y space-right2'>
                <span class="strong">0% </span>
                <span class="quiet">Branches</span>
                <span class='fraction'>0/128</span>
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            <div class='fl pad1y space-right2'>
                <span class="strong">0% </span>
                <span class="quiet">Functions</span>
                <span class='fraction'>0/36</span>
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            <div class='fl pad1y space-right2'>
                <span class="strong">0% </span>
                <span class="quiet">Lines</span>
                <span class='fraction'>0/145</span>
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        <p class="quiet">
            Press <em>n</em> or <em>j</em> to go to the next uncovered block, <em>b</em>, <em>p</em> or <em>k</em> for the previous block.
        </p>
        <template id="filterTemplate">
            <div class="quiet">
                Filter:
                <input type="search" id="fileSearch">
            </div>
        </template>
    </div>
    <div class='status-line low'></div>
    <pre><table class="coverage">
<tr><td class="line-count quiet"><a name='L1'></a><a href='#L1'>1</a>
<a name='L2'></a><a href='#L2'>2</a>
<a name='L3'></a><a href='#L3'>3</a>
<a name='L4'></a><a href='#L4'>4</a>
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<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">&lt;template&gt;
  &lt;div class="card filter"&gt;
    &lt;h4 v-if="ti<span class="cstat-no" title="statement not covered" >tle" class="title sle"&gt;<span class="fstat-no" title="function not covered" ></span></span>
      {{ ti<span class="fstat-no" title="function not covered" >tle }}</span>
<span class="cstat-no" title="statement not covered" >    &lt;/h4&gt;<span class="fstat-no" title="function not covered" ></span></span>
    &lt;e<span class="cstat-no" title="statement not covered" >l-input v-model=</span>"filterText" :placeholder="searchLabel" clearable /&gt;
    &lt;el-scrollbar :style="{ height: title ? `calc(100% - 95px)` : `calc(100% - 56px)` }"&gt;
      &lt;el-tree
<span class="cstat-no" title="statement not covered" >        ref="treeRef"<span class="fstat-no" title="function not covered" ></span></span>
        :defa<span class="fstat-no" title="function not covered" >ult-expand</span>-all="defaultExpandAll"
<span class="cstat-no" title="statement not covered" >        :node-key="id"</span>
<span class="cstat-no" title="statement not covered" >        :data="multiple ? treeData : </span>treeAllData"
        :show-checkbox="multiple"
<span class="cstat-no" title="statement not covered" >        :check-stri</span>ctly="false"
        :current-node-key="!multiple ? selected : ''"
        :highlight-current="!multiple"
        :expa<span class="fstat-no" title="function not covered" >nd-on-cli</span>ck-node="false"
<span class="cstat-no" title="statement not covered" >        :check-on-click-node="multiple"</span>
<span class="cstat-no" title="statement not covered" >        :props="defaultProps"</span>
        :filter-node-method="filterNode"
<span class="cstat-no" title="statement not covered" >        :default-ch</span>ecked-keys="multiple ? selected : []"
        @node-click="handleNodeClick"
        @check="handleCheckChange"
        @node<span class="fstat-no" title="function not covered" >-cont</span>extmenu="handleNodeContextmenu"
<span class="cstat-no" title="statement not covered" >      &gt;</span>
        &lt;template #default="scope"&gt;
<span class="cstat-no" title="statement not covered" >          &lt;span class="el-tree-node__label"&gt;</span>
            &lt;slot :row="scope"&gt;
              {{ scope.node.label }}
            &lt;/slot<span class="cstat-no" title="statement not covered" >&gt;<span class="fstat-no" title="function not covered" ></span></span>
<span class="cstat-no" title="statement not covered" >          &lt;/span&gt;</span>
        &lt;/template&gt;
        &lt;!--<span class="fstat-no" title="function not covered" >  </span>      &lt;template #title=""&gt;--&gt;
<span class="cstat-no" title="statement not covered" >        &lt;!--          <span class="cstat-no" title="statement not covered" >&lt;slot v-if="</span></span>showNodeContextmenu" name="menu"&gt;&lt;/slot&gt;--&gt;
<span class="cstat-no" title="statement not covered" >        &lt;!--        &lt;</span>/template&gt;--&gt;
      &lt;/el-tree&gt;
    &lt;/el-scrollbar&gt;
  &lt;/div&gt;
&lt;/template&gt;
&nbsp;
&lt;script setup lang="ts" name="TreeFilter"&gt;
import { ref, watch, onBeforeMount, nextTick } from "vue";
import {<span class="cstat-no" title="statement not covered" > ElTree } from "element-plus";</span>
<span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" ></span></span>
// 接<span class="cstat-no" title="statement not covered" >收父组件参数并设置默认值</span>
interface TreeFilterProps {
  requestAp<span class="fstat-no" title="function not covered" >i?: (</span>data?: any) =&gt; Promise&lt;any&gt;; // 请求分类数据的 api ==&gt; 非必传
  da<span class="cstat-no" title="statement not covered" >ta?: { <span class="fstat-no" title="function not covered" >[k</span>ey: string]: any }[]; // 分类数据，如果有分类数据，则不会执行 api 请求 ==&gt; 非必传</span>
  titl<span class="cstat-no" title="statement not covered" >e?: string; // treeFi</span>lter 标题 ==&gt; 非必传
  id?: string; // 选择的id ==&gt; 非必传，默认为 “id”
  label?: string; // 显示的label ==&gt; 非必传，默认为 “label”
  multiple?<span class="fstat-no" title="function not covered" >: boo</span>lean; // 是否为多选 ==&gt; 非必传，默认为 false
  de<span class="cstat-no" title="statement not covered" >faultVa<span class="cstat-no" title="statement not covered" >lue?: any; // 默认选中的值 ==&gt; 非必传</span></span>
  se<span class="cstat-no" title="statement not covered" >archLabel?: string;<span class="cstat-no" title="statement not covered" ></span></span>
  defa<span class="cstat-no" title="statement not covered" >ultExpandAll?: boolean; // 是否展开所有 ==&gt; 非必传，默认为 true<span class="cstat-no" title="statement not covered" ></span></span>
  chec<span class="cstat-no" title="statement not covered" >kedLeaf?: bool<span class="cstat-no" title="statement not covered" >ean; // 是否只返回选中的叶子节点 ==&gt; 非必</span></span>传，默认为 false
  show<span class="cstat-no" title="statement not covered" >NodeContextmenu?: boolean; // 是否右键显示下拉菜单 ==&gt; 非必传，默认为 false</span>
}
const props = withDefaults(defineProps&lt;TreeFilterProps&gt;(), {
  id: "id"<span class="cstat-no" title="statement not covered" >,</span>
  label: "<span class="cstat-no" title="statement not covered" >label",</span>
  multiple: false,
  defaultE<span class="cstat-no" title="statement not covered" >xpandAll: t</span>rue,
  checkedL<span class="cstat-no" title="statement not covered" >eaf: false,</span>
  showNodeContextmenu: false
});
&nbsp;
const defaultProps = {
  children<span class="cstat-no" title="statement not covered" >: "children</span>",
  label: p<span class="cstat-no" title="statement not covered" >rops.label</span>
};<span class="cstat-no" title="statement not covered" ></span>
<span class="cstat-no" title="statement not covered" ></span>
const treeRef = ref&lt;InstanceType&lt;typeof ElTree&gt;&gt;();
const tree<span class="cstat-no" title="statement not covered" >Data = ref&lt;{ [key:</span> string]: any }[]&gt;([]);
const tree<span class="cstat-no" title="statement not covered" >AllData = ref&lt;</span>{ [key: string]: any }[]&gt;([]);
<span class="cstat-no" title="statement not covered" ></span>
const selected = ref();
const setS<span class="cstat-no" title="statement not covered" >elected = () =&gt; {</span>
  if (props.<span class="cstat-no" title="statement not covered" >multipl</span>e) selected.value = Array.isArray(props.defaultValue) ? props.defaultValue : [props.defaultValue];
  else selec<span class="cstat-no" title="statement not covered" >ted.value </span>= typeof props.defaultValue === "string" ? props.defaultValue : "";
};
<span class="cstat-no" title="statement not covered" ></span>
onBeforeMoun<span class="cstat-no" title="statement not covered" >t(async () =&gt; {</span>
  setSelecte<span class="cstat-no" title="statement not covered" >d();</span>
  if (props.requestApi) {
    const <span class="cstat-no" title="statement not covered" >{ data } = await props.requestApi!();</span>
    treeData<span class="cstat-no" title="statement not covered" >.value = data;</span>
    treeAllD<span class="cstat-no" title="statement not covered" >ata.valu</span>e = [...data];
  }<span class="cstat-no" title="statement not covered" ></span>
});
<span class="cstat-no" title="statement not covered" ></span>
// 使用 nextTi<span class="cstat-no" title="statement not covered" >ck 防止打包后赋值不生效，开发</span>环境是正常的
watch(<span class="cstat-no" title="statement not covered" ></span>
  () =&gt; prop<span class="cstat-no" title="statement not covered" >s.defau</span>ltValue,
  () =&gt; nextTick(() =&gt; setSelected()),
  { deep: <span class="cstat-no" title="statement not covered" >true, imme<span class="cstat-no" title="statement not covered" >diate: true }</span></span>
);<span class="cstat-no" title="statement not covered" ></span>
<span class="cstat-no" title="statement not covered" ></span>
watch(
  () =<span class="cstat-no" title="statement not covered" >&gt; props.data,</span>
  () =&gt; {
    if<span class="cstat-no" title="statement not covered" > (props.data?</span>.length) {
<span class="cstat-no" title="statement not covered" >      treeDat</span>a.value = props.data;
      treeAllData.value = [...props.data];
    }<span class="cstat-no" title="statement not covered" ></span>
  },
  { <span class="cstat-no" title="statement not covered" >deep: true, imm<span class="cstat-no" title="statement not covered" >ediate: true </span></span>}
);<span class="cstat-no" title="statement not covered" ></span>
&nbsp;
const filterText = ref("");
watch(filterText, val =&gt; {
  treeRef.value!.filter(val);
});
<span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" ></span></span>
//<span class="cstat-no" title="statement not covered" > 过滤<span class="cstat-no" title="statement not covered" ><span class="cstat-no" title="statement not covered" ><span class="cstat-no" title="statement not covered" ></span></span></span></span>
cons<span class="cstat-no" title="statement not covered" >t filterNode = (value: string, data: { [key: string]: any }, node: any) =&gt; {</span>
  if (<span class="cstat-no" title="statement not covered" >!value) r<span class="cstat-no" title="statement not covered" >eturn true;</span></span>
  let <span class="cstat-no" title="statement not covered" >parentNode = node</span>.parent,
    labels = [node.label],
    level = 1;
<span class="cstat-no" title="statement not covered" >  while (level &lt; node.level) {</span>
    labels = [...labels, parentNode.label];
<span class="cstat-no" title="statement not covered" >    parentNode = parentNode.parent;</span>
    level++;
  }
  return lab<span class="cstat-no" title="statement not covered" >els.some(label </span>=&gt; label.indexOf(value) !== -1);
};<span class="cstat-no" title="statement not covered" ></span>
<span class="cstat-no" title="statement not covered" ></span>
<span class="cstat-no" title="statement not covered" >// emit</span>
const emit = defineEmits&lt;{
  change: [value: any];
  nodeContextmenu: [e: any, data: any, n: any];
}&gt;();
&nbsp;
// 单选
const handleNodeClick = (data: { [key: string]: any }) =&gt; {
  if (props.multiple) return;
  emit("change", data[props.id]);
};
&nbsp;
// 右键事件
const handleNodeContextmenu = (e, data, n) =&gt; {
  if (!props.showNodeContextmenu) return;
  emit("nodeContextmenu", e, data, n);
};
&nbsp;
// 多选
const handleCheckChange = () =&gt; {
  emit("change", treeRef.value?.getCheckedKeys(props.checkedLeaf));
};
&nbsp;
// 暴露给父组件使用
defineExpose({ treeData, treeAllData, treeRef });
&lt;/script&gt;
&nbsp;
&lt;style scoped lang="scss"&gt;
@import "./index.scss";
&lt;/style&gt;
&nbsp;</pre></td></tr></table></pre>

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